.exe file is treated as document while downloading

I tried to download an a .exe file from my office machine (Mac OS X Snow Leopard). But the .exe (8MB) file was treated as document. After i downloaded, the file was very small (about 4Kb). So, how should i download the file. It happened on every .exe file.

Not sure how this is realted to Vaadin in any way (?)… but as Mac’s don’t have executables as .exe files (as Windows does) they are treated as documents indeed.